diff --git a/CalculateCalendarLogic.podspec b/CalculateCalendarLogic.podspec
index 33b69e0..eecbf1f 100644
--- a/CalculateCalendarLogic.podspec
+++ b/CalculateCalendarLogic.podspec
@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
   s.name                  = "CalculateCalendarLogic"
   s.swift_versions        = '5.0'
-  s.version               = "0.6.0"
+  s.version               = "0.6.1"
   s.summary               = "This library CalculateCalendarLogic (sample project name is handMadeCalendarAdvance) can judge a holiday in Japan."
   s.description           = <<-DESC
                           This library 'CalculateCalendarLogic' can judge a holiday in Japan.
diff --git a/Package.swift b/Package.swift
index ad48299..a2477cd 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:5.3
+// swift-tools-version:5.7
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription
diff --git a/handMadeCalendarAdvance.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/handMadeCalendarAdvance.xcodeproj/project.xcworkspace/contents.xcworkspacedata
index e83e691..919434a 100644
--- a/handMadeCalendarAdvance.xcodeproj/project.xcworkspace/contents.xcworkspacedata
+++ b/handMadeCalendarAdvance.xcodeproj/project.xcworkspace/contents.xcworkspacedata
@@ -2,6 +2,6 @@
 <Workspace
    version = "1.0">
    <FileRef
-      location = "self:../Tests/CalculateCalendarLogicTests">
+      location = "self:">
    </FileRef>
 </Workspace>
diff --git a/handMadeCalendarAdvance/NewCalendarViewController.swift b/handMadeCalendarAdvance/NewCalendarViewController.swift
index 461da11..11b8ab3 100644
--- a/handMadeCalendarAdvance/NewCalendarViewController.swift
+++ b/handMadeCalendarAdvance/NewCalendarViewController.swift
@@ -59,7 +59,7 @@ class NewCalendarViewController: UIViewController {
 extension NewCalendarViewController: UICalendarViewDelegate {
 
     // CalendarViewに適用する装飾を決定する
-    // 👉 このコードでは祝祭日の部分にオレンジの🗓マークを付与する
+    // 👉 このコードでは祝祭日の部分にオレンジの🏴マークを付与する
     // 参考: https://www.fuwamaki.com/article/353
     @available(iOS 16.0, *)
     func calendarView(_ calendarView: UICalendarView, decorationFor dateComponents: DateComponents) -> UICalendarView.Decoration? {
@@ -69,7 +69,7 @@ extension NewCalendarViewController: UICalendarViewDelegate {
             return nil
         }
         if holidayObject.judgeJapaneseHoliday(year: targetYear, month: targetMonth, day: targetDay) {
-            return .image(UIImage(systemName: "calendar"), color: .orange, size: .medium)
+            return .image(UIImage(systemName: "flag.2.crossed.fill"), color: .orange, size: .medium)
         } else {
             return nil
         }